<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>弹性盒练习</title>
        <style>
            *{
                margin: 0;
                padding: 0;
            }
            ul{
                list-style: none;
                display: flex;
            }
            .center{
                width: 1000px;
                margin: 0 auto;
            }
        </style>
    </head>
    <body>
        <div class="server">
            <div class="center">
                <ul>
                    <li><img src="img/icon1.png" >
                        <p>品质保障</p>
                    </li>
                    <li><img src="img/icon2.png" >
                        <p>私人定制</p>
                    </li>
                    <li><img src="" alt="">
                        <p></p>
                    </li>
                    <li><img src="" alt="">
                        <p></p>
                    </li>
                </ul>
            </div>
        </div>
    </body>
</html>